动态数码管不用译码器显示

动态数码管不用译码器显示

#include

#define GPIO_DIG P0 //段选 #define GPIO_PLACE P1 //位选

//--定义全局变量--//

unsigned char code DIG_PLACE[8] = {

0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};//位选控制 查表的方法控制 unsigned char code DIG_CODE[17] = { 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};

//0、1、2、3、4、5、6、7、8、9、A、b、C、d、E、F的显示码 unsigned char DisplayData[8];

void DigDisplay(); //动态显示函数 void main(void) { unsigned char i; for(i=0; i<8; i++) { DisplayData[i] = DIG_CODE[i]; } while(1) { DigDisplay(); } }

void DigDisplay() { unsigned char i; unsigned int j; for(i=0; i<8; i++) { GPIO_PLACE = DIG_PLACE[i]; //发送位选 GPIO_DIG = DisplayData[i]; //发送段码 j = 10; //扫描间隔时间设定 while(j--); GPIO_DIG = 0x00;//消隐 } }

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